- Companies
- Builders
- Twickenham
- Mario & B Construction Ltd
Mario & B Construction Ltd
- Company number
- 10965831
- Incorporated
- 15 Sep 20179 years trading
- Registered office
- 2 Tower Road, Twickenham, TW1 4PA
- Nature of business
- Construction of domestic buildings
Mario & B Construction Ltd is a 9-year-old private limited company registered in Twickenham, company number 10965831, one of 77 building contractors in Twickenham. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Mario & B Construction LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £239 (-6.5%) on the year before, to £3,418.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £49K against £48K owed within a year: 1.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £3,418 | £49K | £48K | 1 | |
| 30 Sep 2024 | £3,657 | £36K | £40K | 1 | |
| 30 Sep 2023 | £2,307 | £19K | £27K | 1 | |
| 30 Sep 2022 | £2,612 | £11K | £22K | 1 | |
| 30 Sep 2021 | £7,727 | £29K | £21K | 1 | |
| 30 Sep 2020 | £6,224 | £17K | £11K | 1 | |
| 30 Sep 2019 | £557 | £11K | £10K | 1 | |
| 30 Sep 2018 | £388 | £19K | £19K |
Where Mario & B Construction Ltd is registered
The registered office is in Twickenham (TW1), in the Richmond upon Thames local authority area, London. Show TW1 4PA on a map.
Other trade companies in TW1
- Absmartek LimitedPlumbers and heating engineers
- GHD Remedials LtdFinishing trades
- Harmeet Enterprise LimitedBuilders
- MR Floor Pro LtdFloor and wall tilers
- La Garage House LtdMechanics and garages
- Em Property Renovations LtdBuilders
- Aco Properties Management LtdSpecialist contractors
- Handy Sherpa Construction LimitedBuilders
What happens if Mario & B Construction Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 10965831
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 September 2017 (9 years ago)
- Registered office
- 2 Tower Road, Twickenham, TW1 4PA
- Nature of business
- Construction of domestic buildings (SIC 41202)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 18 October 2025
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Twickenham
Other active building contractors registered in Twickenham.
- Masterkraft Builders Ltd2023
- Meshi Contractors Ltd2017
- Mo & Mack Building and Electrical Ltd2026
- Muja Construction Ltd2024
- Novabuild Construction Ltd2025
- NP Buildings & Engineering Limited2014
- NSF Developments Ltd2026
- Octain Construction Limited1994
All building contractors in Twickenham · All trades in Twickenham · Builders across the UK
Frequently asked questions
When are Mario & B Construction Ltd's accounts due?
Mario & B Construction Ltd's next accounts are due at Companies House by 30 June 2027 (in 260 days), covering the period to 30 September 2026.
When is Mario & B Construction Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Mario & B Construction Ltd still trading?
Mario & B Construction Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Mario & B Construction Ltd do?
Mario & B Construction Ltd is registered under Construction of domestic buildings (SIC 41202).
How old is Mario & B Construction Ltd?
Mario & B Construction Ltd was incorporated on 15 September 2017, 9 years ago.
What is the penalty if Mario & B Construction Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Mario & B Construction Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.